@font-face{
    font-family:"myfont";
    src:url("../images/xiaowanzi.ttf") format("truetype");
}
@font-face{
    font-family: "demofont";
    src: url("../images/demoziti.TTF") format("truetype");
}
@mixin wh($w,$h){
    width: #{$w}rem;
    height: #{$h}rem;
}
@mixin pd($pd){
    padding: 0 #{$pd}rem;
}
@mixin bg($bg:white){
    background: url(../images/btn-#{$bg}.png) no-repeat;
}
@mixin fz($fz){
    font-size: #{$fz}rem;
}